what is the best type of wood on a fret board for a guitar, you may suggest many.
and
what is the best type of wood for the body of the guitar

also if you can, state why
thanks

For the fretboard, I would use ebony, because it is very hard and resists wear. For the back and sides, it depends on the type of sound You want. Rosewood gives You a crisp sound with lots of volume. Mahogany gives a more mellow sound, but a little less volume.The top should all ways be spruce, because it vibrates better than most. A pretty good substitute would be cedar. This should all be solid wood, not laminated. I am assuming You are building an acoustic guitar.